 Thu May 6 21:45:30 2021, Helmut, Detectors, beam position on TE5 grids 
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The two grids do not work very well, one x position is opposite to the other.
But at least a guidance for the future, this was good injection of 78Kr with a thick Be target. |
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Sat May 8 16:08:58 2021, Helmut Weick, Accelerator, beam position of Kr before ESR
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Checked beam positions in beamline before ESR,
they all look the same as before, with direct Kr beam.
Compare with old elog entry #.
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Wed Jun 30 01:38:20 2021, Shahab, Runs, beam is back from Linac but not in the ESR
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Fri May 7 20:34:27 2021, Kanika, Michael, Shahab, Runs, back to 15 sec recording
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| now we are going back to 15 sec operation. Cave M (bio) operation is over |
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Thu Jul 1 14:47:15 2021, Yury, Helmut, Accelerator, added high Brho scrapers
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So far only scrapers for low Brho were used:
GE01DS_HI = -58mm (arc from inside) and
GEEXDS2HA = -11.2 (straight from outside)
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Mon May 10 01:34:37 2021, Chris C, General, Zoom screenshot
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| How things look currently in Zoom-world. |
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Sat May 8 07:34:08 2021, Akash, Nic, Jelena, Zsolt, General, Zoom has its own mind
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| Zoom kicked us all out... we managed to get back in...screen sharing is back on. |
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Fri May 7 19:56:10 2021, Kanika, Michael, Shahab, Runs, ZOOM session restart
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| restart zoom session |
 Sun May 9 06:15:09 2021, Iris, Chris G., Jacobus, Michele, Runs, Triplet: zoom in
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Zoom into the triplet: the satellite peaks on the right are clearly visible.
This is just one file but one *might* see some substructure. Yuri mentioned a 318 ms isomer in 45Sc at 12 keV but that cannot be resolved.
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Fri May 7 08:55:33 2021, Ragan, Andrew, Yuri, General, Trigger changed
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Trigger for both the spectrum analyzers is changed from 50% to 1% by Yuri.
For this, the ESR pattern was stopped at 08:50 and was started back at 08:53. |
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Fri May 7 07:52:12 2021, Ragan, Andrew, General, To change trigger position
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Xiangcheng suggested to change the trigger position in order to start the file with the injection. Nothing is changed at the moment. Maybe Shahab or Yuri
can do it when they arrive. |
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Thu May 6 14:30:23 2021, W. Korten, General, Target thickness
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Thickness of the Carbon target in the TE line has been measured by centering the primary 78Kr beam in the ESR:
Beam energy 370 MeV/u, with thin stripper, ESR energy 368.65 MeV
Adjust beam with "thick" target to keep ESR energy at 368.65 MeV/u -> Beam energy 445 MeV/u
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Thu May 6 13:26:56 2021, Helmut Weick, Detectors, TE5 profile grids do not work
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There are several issues.
1. The stepper motor drive does not react from Device-Control, -> check controller in FRS Messhütte
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Sat Jul 3 01:28:08 2021, The remote Canadian eager beavers (Guy and Iris), Analysis, Summed spectra 410 MHz from 21:00-23:59 (70Se)
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Here's a picture with all injections with an ion in the spectrum (empty ones were removed- list below). The time slices are 0-0.5-1-1.5-2s, then in 0.2s
steps up to 3s. Not really anything to see :-( The previous shift was right, looking at single spectra might be more useful. I'll group the pictures and
upload some "interesting" ones.
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Sat Jul 3 03:41:48 2021, The remote Canadian eager beavers (Guy & Iris), Analysis, Summed Spectra Summary
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To summarise the method of bulk summing the spectra, I've created frequency vs time spectra by using the e143_analyser.py script to stack a series of -s
slices. I applied it to some of last runs data with 72Ge, to the 72Br data, last night's less-scraped 70Se, and tonight's more-scraped 70Se, respectively.
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Fri Jul 2 06:33:48 2021, The remote Canadian beavers (Iris and Guy), Analysis, Summary of spectra 4:00-6:00 (410 MHz)
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Same as before for 4-5h and 5-6h.
No isomer, I think :-( (Sorry, Wolfram!)
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Fri Jul 2 01:34:03 2021, The remote Canadian beavers (Iris, Guy), Analysis, Summary of spectra 22:00-23:00
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The last hour before the gas bottle change is summarized here.
The first pic shows the 410 MHz spectra taken from 22-23h on the 410 MHz analyzer, in time slices of 0.1 sec from 0s-2s.
The second pic shows the spectra in 20ms slices from 1s-1.16s.
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Fri Jul 2 06:52:11 2021, The remote Canadian eager beavers (Iris and Guy), Analysis, Summary of spectra 0:00-6:00 (410 MHz)
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Same as before but for 0-6h, 25ms time slices starting at 1.04s.
> Same as before for 4-5h and 5-6h.
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Fri Jul 2 04:27:38 2021, The remote Canadian beavers (Iris and Guy), Analysis, Summary of spectra 0:00-4:00 (410 MHz)
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Same as before for 0-4h on July 2nd.
> Same as before, for 0-1h on July 2nd
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Fri Jul 2 02:03:36 2021, The remote Canadian beavers (Iris, Guy), Analysis, Summary of spectra 0:00-1:00
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Same as before, for 0-1h on July 2nd
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